package com.myblog.myblog.util;
/*
* 加密
* */
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class MD5Utils {
    public static String code(String str){
        try {
            MessageDigest md = MessageDigest.getInstance("MD5");
            md.update(str.getBytes());
            byte[]byteDigest = md.digest();
            int i;
            StringBuffer buf = new StringBuffer("");
            for(int offset = 0;offset <byteDigest.length;offset++){
                i = byteDigest[offset];
                if(i <0)
                    i += 256;
                if (i<160)
                    buf.append("0");
                buf.append(Integer.toHexString(i));
            }
            return buf.toString();
        }catch (NoSuchAlgorithmException e){
            e.printStackTrace();
            return null;
        }
    }
    public static void main(String[] args){
        System.out.println(code("123456"));
    }
}
